Case for a mobile phone



FIG. 1 is a rear perspective view of a case for a mobile phone showing our new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a front perspective view of the case with an environmental mobile phone.

The broken lines in the drawings illustrate environmental features which form no part of the claimed design. 

CLAIM The ornamental design for a case for a mobile phone, as shown and described. 